Ultrasound Assessment of Gastric Content and Volume

Ultrasound Assessment of Gastric Content and Volume After Complete Fasting in Patients Undergoing Surgery at Two University Hospitals: A Multicentric Study

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02810977

Enrollment

1000

Registered

2016-06-23

Start date

2016-06-30

Completion date

2017-01-31

Last updated

2017-03-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fasting

Keywords

gastric volume, gastric content, ultrasound, perioperative fasting

Brief summary

Anesthesiologists try to avoid complications with significant peri -operative morbidity and mortality such as bronchoaspiration in patients requiring a surgical procedure under anesthesia. Currently, this is achieved based on experts recommendations from the American Society of Anesthesiologists. However, there are tools like ultrasound that allow assessment of gastric content and volume. This tool allows to individualize each patient and base the decisions objectively. The investigators will assess gastric content and volume by ultrasound in patients who have fasted and require surgery at two University Hospitals.

Interventions

DEVICEUltrasound

Ultrasound assessment of gastric content and volume

Study design

Observational model

OTHER

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Adults ≥ 18 years * perioperative fasting time between 8 and 14 hours * American Society of Anesthesiologists status I, II, III * Scheduled surgery

Exclusion criteria

* Abdominal pathology surgical emergency * Unable to adopt right lateral decubitus position * Altered gastrointestinal tract anatomy excluding hiatal hernia * Body mass index greater than 40 * Patients on enteral nutrition probe or with nasogastric probe * Pregnancy

Design outcomes

Primary

Measure	Time frame	Description
Gastric content	June to December	Ultrasound assessment of gastric content (empty, fluids, or solid) of patients undergoing surgery after complete fasting (more than 8 hours)
Gastric volume	June to December	Ultrasound assessment of gastric volume (in milliliters) of patients undergoing surgery after complete fasting (more than 8 hours)

Secondary

Measure	Time frame	Description
Association of gastric content and volume with special conditions as assessed by Anova or Kruskal as appropriate	June to December	To identify the association between gastric content and volume with conditions such as diabetes, obesity, hiatal hernia, among others.
Association with fasting time	June to December	To identify the association between gastric content and volume and preoperative fasting time.

Countries

Colombia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026